JPS5339041A - Programable active filter - Google Patents

Programable active filter

Info

Publication number
JPS5339041A
JPS5339041A JP11404376A JP11404376A JPS5339041A JP S5339041 A JPS5339041 A JP S5339041A JP 11404376 A JP11404376 A JP 11404376A JP 11404376 A JP11404376 A JP 11404376A JP S5339041 A JPS5339041 A JP S5339041A
Authority
JP
Japan
Prior art keywords
active filter
programable
electornically
frequancy
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11404376A
Other languages
Japanese (ja)
Inventor
Hiroshi Koyada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11404376A priority Critical patent/JPS5339041A/en
Publication of JPS5339041A publication Critical patent/JPS5339041A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters

Landscapes

  • Networks Using Active Elements (AREA)

Abstract

PURPOSE:To obtain a active filter which is capable of switching the central frequancy and the band width by controlling the switch element electornically and which is suitably manufactured for an integrated circuit. Thus, the active filter can be applied effectively for a selective calling unit of a mobile radio apparatus.
JP11404376A 1976-09-22 1976-09-22 Programable active filter Pending JPS5339041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11404376A JPS5339041A (en) 1976-09-22 1976-09-22 Programable active filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11404376A JPS5339041A (en) 1976-09-22 1976-09-22 Programable active filter

Publications (1)

Publication Number Publication Date
JPS5339041A true JPS5339041A (en) 1978-04-10

Family

ID=14627590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11404376A Pending JPS5339041A (en) 1976-09-22 1976-09-22 Programable active filter

Country Status (1)

Country Link
JP (1) JPS5339041A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077854A (en) * 1982-09-10 1985-05-02 ペンウオルト・コ−ポレ−シヨン Improved changed resistive and changed proof end section sealing vessel
JPS60216077A (en) * 1984-03-15 1985-10-29 ノルデイシエル・マシーネンバウ・ルド・バアデル・ゲーエムベーハー・ウント・コンパニ・カーゲー Apparatus for sending out predetermined amount of flabby substance
FR2588433A1 (en) * 1985-10-09 1987-04-10 Bull Sa Filter with switchable transfer function and phase-locking loop containing the said filter
JPS62184179U (en) * 1986-05-16 1987-11-21
JPS63169807A (en) * 1987-01-08 1988-07-13 Sony Corp Filter circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6077854A (en) * 1982-09-10 1985-05-02 ペンウオルト・コ−ポレ−シヨン Improved changed resistive and changed proof end section sealing vessel
JPS60216077A (en) * 1984-03-15 1985-10-29 ノルデイシエル・マシーネンバウ・ルド・バアデル・ゲーエムベーハー・ウント・コンパニ・カーゲー Apparatus for sending out predetermined amount of flabby substance
FR2588433A1 (en) * 1985-10-09 1987-04-10 Bull Sa Filter with switchable transfer function and phase-locking loop containing the said filter
JPS62184179U (en) * 1986-05-16 1987-11-21
JPH0417813Y2 (en) * 1986-05-16 1992-04-21
JPS63169807A (en) * 1987-01-08 1988-07-13 Sony Corp Filter circuit

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